2N 2N 2N Units. Collector – Emitter Voltage. VCEO. . verify that the information in this data sheet is current before using this product. Visit for additional data sheets and product information. Forward Current Transfer Ratio. IC = 10 Adc, VCE = 3 Vdc. 2N 2N NPN POWER SILICON TRANSISTOR. Qualified per MIL-PRF/ T4- LDS Rev. 1 (). Page 1 of 5. DEVICES. LEVELS. 2N 2N

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At B, the bands are grouped toward the cathode. Multiply these numbers by multiples of ten to get other standard values. In many instances the designer must empirically determine the SCR and circuit elements which will result in reliable and effective Darasheet operation. Hong Kong Resistors Manufactory.

Some of the data from IC Master is also available on computer disks. C [sj should be a high frequency type datasehet Cq: Most resistors are marked with color bands according to the code, shown in Table In addition to the value, ceramic disk capacitors may be marked with an alphanumeric code signifying temperature characteristics. Each transistor is protected from inductive turn-off voltage transients by an R-C snubber and a fast recovery clamp rectifier.

This results in a reference voltage with very stable temperature characteristics. Here, the dc feedback signal is compared to a fixed frequency sawtooth or triangular wave- form.

The block diagram of the MC is shown in Figure This is an instantaneous value.

2N6249 Datasheet PDF

This locus of points is determined by the input voltage Vinioutput voltage Vooutput current lo and the type of output current limiting technique employed. It is easier to store the required energy in high voltage input filter capacitors V than in lower voltage V capacitors common to linear power supplies.


AC Input Section The operating ac line voltage is selectable for a nominal of 1 15 or volts by moving the jumper links to their appropriate positions. To prevent false tripping of the OVP circuit by noise which would not normally harm the load, MC has a programmable delay feature. Typical tolerances would be: A unique flyback transformer A single control IC MC A fast-switching high-voltage transistor Single output filters in each of the four outputs The flyback base-drive circuit AC-line input voltage doublers.

The industry needs something better like powered iron that will provide permeabilities of 60 to instead of to for this application. For the R package, the case is ground. In order to describe the operation of Q2, consider that Q6 and Q3 are turned on. The heatsink will not be located near other heat radiating surfaces. At low output currents, Va approximately equals Vo and Vr2 is less than than Vo. Therefore, it is important that the circuit lead lengths be short and the layout as tight as possible.

However, since the sense and ground leads are usually rather long, care must be exercised that their associated lead inductance is minimized, or loop instability may result.

This is because regulators are state-of-the-art devices, handling high voltages and currents. S 10, Input C pF 4 5 5 5 Feedback signals can be coupled directly to the trans- former. An Aiternate Method of Sensing Line Fauit and Overvoitage Conditions for Linear Power Suppiies and medium sized computer systems which must store part or all of the data currently being processed before the power failure.

In addition, its features include: When filter capacitors are placed in series across the rectified line, as in a doubler circuit, voltage sharing can be a problem. A replacement should be able to source or sink at least as much current as the device it replaces.


Output current limit protection is achieved by incorporating a current sense transformer T4.

2N Datasheet(PDF) – Central Semiconductor Corp

For example, a lot may be rejected because the sample quality was less than that prescribed by the mathematics of sampling and our original goal maximum percent rejects allowed in a lot. The 50 kHz output is filtered by inductor LI, and capacitor C4. This inductance effectively snubs most tum-on load lines so that the rectifier recovery or short circuit current and the input voltage are not applied simultaneously to the transistor. Additional circuit configurations can be found on the device data sheets see Section However, its main function is to return energy stored in the magnetizing inductance to the line and thereby reset the core after each cycle of operation.

For example, a resistor as shown in Fig Proper attention to circuit layout is therefore necessary in order to prevent regulator instability or oscillations, or degraded performance. White QPL material with certifications and test reports.

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Obtaining an Adjustable Output Voltage With the addition of an op amp, an adjustable output voltage supply can be datasheey with the MCC. This results in a greater input voltage at higher foldback ratios. Transformer performance can be gauged from the fact that although the output current ratings for the secondary transformer windings are specified as 5.